Back to Homepage

1-3 Drifting continents


Vocabulary


pangaea- means 'all land'- or that all continents were together.
contimental drift- moveing of the continents apart.
fossil- a trace of ancient organion that has been preserved.

Outline


Into
  • Africa and South America look like a jigsaw puzzle pieces that could fit together.
The theory of continental drift
  • 1910 Alfred Wegener
    • hypotheas was that continents were once joined together
    • 300 million years ago
  • evidence from landfroms
    • mountains
      • lined up South America and Argentina
    • coalfields
      • Europe coalfields with North America
  • evidence from fossils
    • formed common dinosaur fossils and plants foaails
  • evidence from climate
    • current places in the world had the opposite climate
    • hot places had rocks scrathed chach indicated glactes were once there
Scientist reject Wengener's theory
  • lacked an explaction about how or when the continental drifted

JLKR_1.3.jpg